A file system (or filesystem or fs) is a means to organize data expected to be retained after a program terminates by providing procedures to store, retrieve and update data. It also allows you to manage the available space on the device.
some common types of fs are as follows.
fat 16, fat32, ntfs, hfs, hfs plus, ext2, ext3, ext4. the list goes on.
a file system on a usb flashdrive or hdd will make some difference.
- fat32 fs: This is good for saving files to use between all operating systems as they can use it. fat32 has a limit of maximum file size 4gb.
- ntfs: a windows based fs a good choice as Mac, Linux & Windows can access files.
- hfs fs: This is the common mac fs. for use on mac computers.
- ext fs:ext2, ext3, ext4 are the common Linux fs. They are good if you only need the usb for booting a Linux os or access between Linux computers.
- Other fs: there are many other fs that you can use and it depends on your use if you need them